NAME

     linear  - Output linear  combination  of  two  input  files:
     file_out = a*file_in1 + b*file_in2

SYNOPSIS

     linear [ -N1ntap1 ] [ -N2ntap2 ] [ -Ootap ] [ -amp1amp1 ]  [
     -amp2amp2 ] [ -? ]

DESCRIPTION

     linear weights and stacks 2 input data sets. Current options
     are:

      1. default: output = N1 +  N2

     linear gets both its data and its  parameters  from  command
     line  arguments.  These arguments specify the input, output,
     N1 and N2 amplitude multiplier.


  Command line arguments
     -N1 ntap1 [default = stdin]
          Enter the input data set name or file immediately after
          typing  -N1.   This  input file should include the com-
          plete path name if the  file  resides  in  a  different
          directory.   Example -N1/vsp/dummy tells the program to
          look for file 'dummy' in directory 'vsp'.

     -N2 ntap2 [default = none]
          Enter the input data set name or file immediately after
          typing -N2. This input file should include the complete
          path name if the file resides in a different directory.
          Example  -N2/vsp/dummy  tells  the  program to look for
          file 'dummy' in directory 'vsp'.

     -O otap [default = stdout]
          Enter the output data  set  name  or  file  immediately
          after  typing -O. This output file is not required when
          piping the output to another process.  The output  data
          set also requires the full path name (see above).

     -amp1 amp1
          Enter the multiplier to be applied to  the  N1  dataset
          [Default=1]

     -amp2 amp2
          Enter the multiplier to be applied to  the  N2  dataset
          [Default=1]

     -? -h -help
          Enter the command line argument '-?'   or  '-h'  or  '-
          help'  to get online help. The program terminates after
          the help screen is printed.

BUGS

      Unknown

AUTHOR

     B. Duquet [ATTC]

COPYRIGHT

     copyright 2001, Amoco Production Company
               All Rights Reserved
          an affiliate of BP America Inc.